Complete remote publication workstream

docs/operations.md

@@ -405,6 +405,11 @@ Each mutable lock is an independent strict JSON object at
 from the exact canonical source. Listing validates every object in that
 reserved prefix and reports locks sorted by source.
 
+Upgrades do not read, migrate, or delete the retired `{session_prefix}/locks.yml`
+object. It has no effect on publication and may be removed manually after
+verifying lock commands and publication behavior with the upgraded Narratio
+version. No migration command is required.
+
 Operational rules:
 
 - add uses conditional creation and reports an existing lock;